$ git clone -n https://src.fedoraproject.org/rpms/js-d3-flame-graph.git /var/lib/mock/f45-build-46550-846/root/chroot_tmpdir/scmroot/js-d3-flame-graph
Cloning into '/var/lib/mock/f45-build-46550-846/root/chroot_tmpdir/scmroot/js-d3-flame-graph'...
$ git fetch origin bddec3a10a40ff469f18a007e4df3d125041de4e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/js-d3-flame-graph
 * [new ref]         bddec3a10a40ff469f18a007e4df3d125041de4e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bddec3a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild